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Using Rails 3.1, where do you put your “page specific” JavaScript code?

To my understanding, all of your JavaScript gets merged into 1 file. Rails does this by default when it adds //= require_tree . to the bottom of your application.js manifest file. ...
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Are Javascript arrays sparse?

...ript arrays are implemented differs from browser to browser, but they generally fall back to a sparse implementation - most likely the same one used for property access of regular objects - if using an actual array would be inefficient. You'll have to ask someone with more knowledge about specific ...
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How to initialize an array's length in JavaScript?

... Why do you want to initialize the length? Theoretically there is no need for this. It can even result in confusing behavior, because all tests that use the length to find out whether an array is empty or not will report that the array is not empty. Some tests show that settin...
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Ways to circumvent the same-origin policy

... set document.domain to othercompany.com. With this method, you would be allowed to exectue javascript from an iframe sourced on a subdomain on a page sourced on the main domain. This method is not suited for cross-domain resources as browsers like Firefox will not allow you to change the document...
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Android: create a popup that has multiple selection options

...post :) – user3402040 Jun 23 '15 at 10:54 Hello, can you also show how I can set actions for specific item selections?...
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How to find a Java Memory Leak

... supposed to be able to find the root reference ( ref ) or whatever it is called. Basically, I can tell that there are several hundred megabytes of hash table entries ([java.util.HashMap$Entry or something like that), but maps are used all over the place... Is there some way to search for large maps...
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Remove refs/original/heads/master from git repo after filter-branch --tree-filter?

... as a backup, in case you mess up your filter-branch. Believe me, it's a really good idea. Once you've inspected the results, and you're very confident that you have what you want, you can remove the backed up ref: git update-ref -d refs/original/refs/heads/master or if you did this to many refs...
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What is the difference between String and string in C#?

... string is an alias in C# for System.String. So technically, there is no difference. It's like int vs. System.Int32. As far as guidelines, it's generally recommended to use string any time you're referring to an object. e.g. string place = "world"; Likewise, I think it's g...
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How do I use boolean variables in Perl?

...isn't perfect, merely the best I've found. It's meant to be practical, not all-encompassing. Do note that value returned by your bool does stringify to 0. Also, you are discouraged from creating inconsistent overloads, and the values you return could be considered such. (e.g. a && can be opt...
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How can I make a Python script standalone executable to run without ANY dependency?

...'m building a Python application and don't want to force my clients to install Python and modules. 19 Answers ...